【作者】 韦媛丽；

【导师】 戴景民；

【作者基本信息】 哈尔滨工业大学 ， 仪器科学与技术， 2007， 硕士

【摘要】 在现代的智能化建筑中,火灾监测系统是不可或缺的安全装置。由于其肩负着保护人们生命财产安全的重任,所以其可靠性和准确性要求较高。传统的火灾监测系统采用错综复杂的有线连接,在客观上限制了建筑物的布局设计和效用,给人们的日常生活带来了诸多不必要的麻烦。无线火灾监测系统是一种利用无线数传技术进行通信的新型火灾监测系统。它有效地解决了以上问题。本文研究的是基于无线数传模块的无线火灾监测系统。我们选择的JZ873型无线数传模块和STR-30型无线数传模块具有功耗低、体积小、传输距离远、可靠性高、误码率低等特点,完全符合系统的功能要求;探测器负责感知周围环境的状态,并将状态信息通过无线数传模块发送出去。本设计采用了探测器控制电路与传感器分离的设计方式,以便用户根据自己的需要选择不同类型的传感器;写码器为系统中每一个探测器写入信道码和唯一的身份标识码,并将它们显示出来;无线接口电路一方面与无线模块相连,向各探测器发送同步信号,以消除长时间工作带来的误差。另一方面,无线接口电路把接收到报警状态信息发送给控制器。控制器包含键盘电路和液晶显示电路,可以提供良好的人机交互环境,人们可以通过手动操作键盘查询报警记录和更改系统参数。本系统具有成本低廉、低功耗、可靠性高、实用性强等特点。可以广泛地应用到现代智能建筑中去。随着无线技术进一步发展,无线火灾监测系统将在人们的日常生活中起着越来越重要的作用。更多还原

【Abstract】 Fire observation system is an important safeguard in modern intelligent buildings. Because the systems undertake to protect life and wealth of people, high reliability and high veracity are needed. Traditional fire observation systems adopt anfractuous wire connect, which restrict distribution design and avail of buildings, bringing many unnecessary troubles to daily life of people. Wireless fire observation system is a new kind system which uses wireless digital transmission technology. The wireless system solves the above problems out effectively.Wireless fire observation system researched in this paper is based on wireless digital transmission module. We chose JZ873 wireless digital transmission module and STR-30 wireless digital transmission module which have low power, small volume, long transfer distance, high reliability and low error rate. They meet the system requirements absolutely. Detector is responsible for perception of the state of the surrounding environment and sent state information through wireless digital transmission module. In the design, detector control circuit and sensor are separate from each other. Users can choose different kinds of sensors according to their needs. The coder can be used to write channel code and ID code of each detector, and show the codes out. In one hand, the wireless interface circuit which connects with wireless digital transmission module can send synchronous signal to detectors in order to eliminate error during long working. On the other hand, it can also send alarm information to the controller, the controller which includes keyboard circuit and liquid crystal display circuit can offers a good man-machine conversation environment, through which users can inquire fire alarm records and change system parameters.The advantages of this system make it can be widely used in modern intelligent buildings, such as low cost, low power, high reliability and better practicability. With the further development of wireless technology, wireless fire observation system will play a more important role in people’s daily life.更多还原